Fish Boxes
Durable, food-grade expanded polystyrene (EPS) fish boxes delivering superior cold retention, moisture resistance, and structural strength — keeping fresh and frozen seafood at optimal temperatures from boat to market.
Engineered for the job it protects.
Insutech's EPS Fish Boxes are the industry standard for the storage and distribution of fresh, chilled, and frozen seafood. Manufactured from high-density food-grade expanded polystyrene, our fish boxes maintain optimal low temperatures from the point of catch through processing, cold storage, and final distribution to markets, supermarkets, and export customers.
The fishing and aquaculture industry demands packaging that can withstand wet environments, rough handling, and stacking loads while maintaining the cold chain integrity on which product quality and shelf-life depend. Insutech's EPS fish boxes deliver on all counts — combining outstanding thermal performance with the mechanical strength and hygiene requirements of professional seafood operations.
- Extended cold retention — maintains fish at 0–4°C for 24–48+ hours with ice
- Food-grade EPS safe for direct contact with fresh and frozen seafood
- Closed-cell structure does not absorb fish liquids, blood, or moisture
- High-density construction withstands stacking loads in cold storage and transit
- Smooth internal surfaces facilitate rapid cleaning and reuse (where applicable)
- Lightweight — significantly reduces freight costs versus plastic or wood alternatives
- Available in standard industry sizes and fully custom dimensions
- Optional drainage holes for ice melt management
Outstanding Cold Retention
High-density EPS dramatically slows heat transfer, keeping fish and seafood at optimal 0–4°C temperatures for 24–48+ hours with standard ice — maintaining freshness, shelf-life, and food safety compliance throughout the distribution chain.
Liquid and Moisture Resistant
EPS's closed-cell foam structure does not absorb fish liquids, melt water, blood, or salt water — maintaining structural integrity and hygiene throughout the product's use life, even in the wettest fish handling environments.
Structural Strength Under Stack Loading
Insutech EPS fish boxes are engineered with high-density foam to withstand significant compressive loads when stacked — preventing box collapse and product damage in cold stores, transport vehicles, and market environments.
Food-Grade & Hygienic
Manufactured using food-grade EPS in compliance with food safety standards, Insutech fish boxes are safe for direct contact with fresh produce and meet the hygiene requirements of food safety-regulated environments.
Lightweight Freight Savings
EPS fish boxes are dramatically lighter than alternative materials such as polystyrene-lined wood or solid plastic, reducing per-unit freight costs — particularly valuable for air-freighted premium seafood exports.
Fully Customizable
Box dimensions, density, wall thickness, lid design, and optional drainage features can all be configured to your specific catch size, species, and distribution route requirements.
Technical Specifications
| Specification | Standard Value / Range | Notes |
|---|---|---|
| Material | Expanded Polystyrene (EPS) | Food-grade, virgin EPS bead |
| Density | 20 – 35 kg/m³ (customizable) | Higher density = better cold retention & strength |
| Operating Temperature | −40°C to +25°C | Full cold chain range |
| Water Absorption | < 1% by volume | Closed-cell structure resists liquids |
| Compressive Strength | 100 – 250 kPa | Density-dependent stacking performance |
| Standard Sizes | Custom — all sizes available | 5 kg to 50 kg capacity options |
| Lid / Closure | Snap-fit or friction-fit lid | Custom lid profiles available |
| Drainage | Optional drainage holes available | For ice melt management |
| MOQ | On request | Contact us for volume pricing |
*Insutech reserves the right to modify product specifications, descriptions, and technical information at any time without prior notice.
Commercial Fishing Operations
Onboard and dockside fish storage maintaining catch freshness from vessel to processing facility
Seafood Processing & Export
Export-grade fish boxes for air and sea freight of premium chilled and frozen seafood
Fish Markets & Auctions
Standard fish market boxes for display, handling, and sale of fresh catch
Supermarket & Retail Distribution
Chilled seafood distribution from processing to retail display counters
Aquaculture Operations
Harvested fish and shellfish packaging for farm-to-market distribution
All of Insutech's EPS foam packaging — including Fish Box — can be fully customized to fit any product, size, or application. We manufacture EPS in all densities and dimensions you might require.
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